/**
 * 
 */
package cn.com.swan.framework.util;

import java.security.MessageDigest;

/**
 * <p></p>
 * @author <a href="mailTo:eason26_li@yahoo.com.cn">lee</a>
 * @version 1.0
 * @Date 2012-12-23
 */
public class MD5Utils {
	public final static String MD5(String s) {
	    try {
	     byte[] btInput = s.getBytes();
	     MessageDigest mdInst = MessageDigest.getInstance("MD5");
	     mdInst.update(btInput);
	     byte[] md = mdInst.digest();
	     StringBuffer sb = new StringBuffer();
	     for (int i = 0; i < md.length; i++) {
	      int val = ((int) md[i]) & 0xff;
	      if (val < 16)
	       sb.append("0");
	      sb.append(Integer.toHexString(val));
	    
	     }
	     return sb.toString();
	    } catch (Exception e) {
	     return null;
	    }
	}
	public static void main(String[] args) {
		System.out.println(MD5("123456"));
	}
}
